scholarly journals Carpinus gigabracteatus, a new species from southeast Yunnan, China

PhytoKeys ◽  
2020 ◽  
Vol 145 ◽  
pp. 47-56
Author(s):  
Zhiqiang Lu
Keyword(s):  
New Species ◽  
Leaf Length ◽  
Width Ratio ◽  
Morphological Comparison ◽  
A New Species

Carpinus gigabracteatus Z. Qiang Lu, a new hornbeam species from southeast Yunnan of China, is described and illustrated in this study. It possesses extremely large bracts and is closely related to C. tsaiana Hu and C. tschonoskii Maxim., based on the characters of large bract size and bracts without lobes at the base of inner margins. Furthermore, morphological comparison suggested it was distinctly different from C. tschonoskii by a series of characters from leaf, infructescence, bract and nutlet and from C. tsaiana by its leaf length to width ratio (1.4–2.0 vs. 2.0–2.4), lateral veins significantly impressed adaxially, number of lateral veins on each side of midvein (9–14 vs. 14–17), bract length (3.9–4.8 vs. 2.5–3.2 cm) and bract length to width ratio (2.3–3.1 vs. 1.5–2.1). Therefore, this hornbeam, based on only one population from southeast Yunnan, is here erected as a new species, named as C. gigabracteatus.

Aspidistra revoluta, a new species from limestone areas in Chongqing, China

Phytotaxa ◽  
2016 ◽  
Vol 257 (3) ◽  
pp. 280 ◽  
Author(s):  
Hao Zhou ◽  
Si-rong Yi ◽  
Qi Gao ◽  
Jie Huang ◽  
Yu-jing Wei
Keyword(s):  
New Species ◽  
Chromosome Number ◽  
Average Length ◽  
Chromosome Complement ◽  
Pollen Grains ◽  
The Other ◽  
Morphological Comparison ◽  
Chongqing Municipality ◽  
Karyotype Asymmetry ◽  
A New Species

Aspidistra revoluta (Asparagaceae) is described and illustrated as a new species from limestone areas in southern Chongqing Municipality, China. The new species can be distinguished from the other Aspidistra species by its unique umbrella-like pistil with large revolute stigma lobes that bent downwards and touch the base of the perigone. A detailed morphological comparison among A. revoluta, A. nanchuanensis and A. carnosa is provided. The pollen grains of A. revoluta are subspherical and inaperturate, with verrucous exine. The chromosome number is 2n = 38, and the karyotype is formulated as 2n = 22m + 6sm + 10st. The average length of chromosome complement is 4.50 μm, and the karyotype asymmetry indexes A1 and A2 are respectively 0.37±0.03 and 0.49±0.01.

Novelties in Persicaria (Polygonaceae): description of a narrowly endemic new species from southern Brazil, and typification of the name Polygonum minus

Phytotaxa ◽  
2021 ◽  
Vol 490 (1) ◽  
pp. 60-70
Author(s):  
LUÍS A. FUNEZ ◽  
GUSTAVO HASSEMER
Keyword(s):  
New Species ◽  
Morphological Description ◽  
Southern Brazil ◽  
Distribution Map ◽  
Morphological Comparison ◽  
Polygonum Minus ◽  
Narrow Area ◽  
Eurasian Species ◽  
A New Species ◽  
Locus Classicus

A new species of Persicaria, P. humboldtiana, endemic to a narrow area of waterfalls in Corupá, southern Brazil, is described in the present paper. The locus classicus of the new species is well-known for plant endemisms. A complete morphological description, original pictures, a distribution map, and a morphological comparison with the similar Eurasian species P. minor (≡ Polygonum minus) are given. The name Polygonum minus is lecto- and epitypified on, respectively, a Morison’s illustration and a specimen preserved at BM.

Pseudodactylaria brevis sp. nov. from Thailand confirms the status of Pseudodactylariaceae

Phytotaxa ◽  
2018 ◽  
Vol 369 (4) ◽  
pp. 241 ◽  
Author(s):  
CHUAN-GEN LIN ◽  
ERIC H. C. MCKENZIE ◽  
DARBHE J. BHAT ◽  
JIAN-KUI LIU ◽  
KEVIN D. HYDE ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Sequence Data ◽  
Taxonomic Status ◽  
Its Sequence ◽  
Morphological Comparison ◽  
Phylogenetic Placement ◽  
Data Analyses ◽  
The Status ◽  
A New Species

A new species, Pseudodactylaria brevis, is described, illustrated and compared with other Pseudodactylaria and Dactylaria-like taxa. Evidence for the new species is provided by morphological comparison and sequence data analyses. Pseudodactylaria brevis can be distinguished from other Pseudodactylaria and Dactylaria-like species by its short hyaline conidiophores and fusiform, 1-septate hyaline conidia. Phylogenetic analysis of LSU and ITS sequence data was carried out to determine the phylogenetic placement of the species and confirm the taxonomic status of Pseudodactylariaceae.

scholarly journals A new species of Sacada Walker, 1862 from Thailand (Lepidoptera, Pyralidae, Pyralinae)

2020 ◽  
Vol 4 (2) ◽  
pp. 71-77
Author(s):  
Markku J. Pellinen ◽  
Reza Zahiri ◽  
Pasi Sihvonen
Keyword(s):  
New Species ◽  
Dna Barcode ◽  
Morphological Characters ◽  
Valid Species ◽  
Morphological Comparison ◽  
Northern Thailand ◽  
Lepidoptera Pyralidae ◽  
A New Species

A new species of Sacada from northern Thailand is described: S. chaehomensissp. nov. Pellinen & Zahiri (Lepidoptera: Pyralidae, Pyralinae). Morphological characters and DNA barcode data are provided for the new species, with a morphological comparison to S. dzonguensis and S. umtasorensis, and a DNA-barcode comparison to S. ragonotalis and S. albioculalis, respectively. After this addition, the current number of valid species in the genus Sacada is 43.

Afroboletus sequestratus (Boletales), the first species with sequestrate basidioma in the genus

Phytotaxa ◽  
2017 ◽  
Vol 305 (1) ◽  
pp. 11 ◽  
Author(s):  
LI-HONG HAN ◽  
BART BUYCK ◽  
NOUROU S. YOROU ◽  
ROY E. HALLING ◽  
ZHU L. YANG
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
The Other ◽  
Morphological Description ◽  
Sem Images ◽  
Morphological Comparison ◽  
Line Drawings ◽  
Molecular Phylogenetic ◽  
A New Species

A new species of Afroboletus, namely A. sequestratus, is described from Zambia. Evidence from molecular phylogenetic analyses using sequences rpb1, rpb2 and tef1α and morphological comparison support its placement in Afroboletus and it is distinct from the other related members of this genus in Africa. It is the first species with sequestrate basidiomata in the genus. A morphological description is augmented with line drawings and SEM images for the species.

A new species of Geranium (Geraniaceae) from Himachal Pradesh, India

Phytotaxa ◽  
2020 ◽  
Vol 452 (1) ◽  
pp. 75-82
Author(s):  
VIJAY VISHNU WAGH ◽  
IMTIYAZ AHMAD HURRAH
Keyword(s):  
New Species ◽  
Related Species ◽  
Himachal Pradesh ◽  
Morphological Comparison ◽  
Taxonomic Key ◽  
A New Species

Geranium lahulense, a new species from Keylong, Lahul & Spiti district of Himachal Pradesh, is described and illustrated. The new species is distinguished from its allied species (G. richardsonii, G. pratense, G. himalayense) by its deltoid-subulate stipules, polygonal to sub-globular leaves with widely separated rhombic segments, white obovate-cordate petals and mericarps without any transverse vein at apex. A morphological comparison with related species and taxonomic key to distinguish the species are also provided.

scholarly journals A new species of troodontid theropod (Dinosauria: Maniraptora) from the Horseshoe Canyon Formation (Maastrichtian) of Alberta, Canada

2017 ◽  
Vol 54 (8) ◽  
pp. 813-826 ◽  
Author(s):  
David C. Evans ◽  
Thomas M. Cullen ◽  
Derek W. Larson ◽  
Adam Rego
Keyword(s):  
New Species ◽  
North America ◽  
Alpha Diversity ◽  
Width Ratio ◽  
New Taxon ◽  
Lateral Region ◽  
Morphometric Analyses ◽  
Dinosaur Park Formation ◽  
Horseshoe Canyon Formation ◽  
A New Species

Troodontid material from the Maastrichtian of North America is extremely rare, beyond isolated teeth from microvertebrate sites. Here we describe troodontid frontals from the early Maastrichtian Horseshoe Canyon Formation (Horsethief Member). The most complete specimen, TMP 1993.105.0001, is notably foreshortened and robust when compared with numerous specimens referred to Troodon from the Dinosaur Park Formation, and exhibits several characteristics that distinguish it from other Late Cretaceous troodontids. Morphometric analyses reinforce shape differences between TMP 1993.105.0001 and other North American troodontids, and show that proportional differences are independent of size. We therefore erect a new taxon, Albertavenator curriei gen. et sp. nov., which is diagnosed by the following autapomorphies: (1) primary supraciliary foramen is truncated anteriorly by the lacrimal contact; (2) superficial (ectocranial) surface of the frontal proportionally shorter than all known troodontids, with a length to width ratio under 1.3; and (3) frontoparietal contact in which an enlarged lappet of the frontal extends medially to extensively overlap the lateral region of the anteromedial process of the parietal. Interestingly, tooth and jaw morphology from the single relatively complete dentary recovered from the Horseshoe Canyon cannot be distinguished from dentaries and teeth from the Dinosaur Park Formation. If the dentary and teeth from the Horsethief Member of the Horseshoe Canyon Formation prove to belong to A. curriei, extensive overlap in tooth morphology between the Dinosaur Park and Horseshoe Canyon formations reinforces the notion that tooth morphotypes do not exhibit strong correspondence to species alpha diversity, and may encompass multiple closely related taxa.

Limonium poimenum (Plumbaginaceae), a new chasmophyte species from Sicily

Phytotaxa ◽  
2014 ◽  
Vol 188 (5) ◽  
pp. 268 ◽  
Author(s):  
VINCENZO ILARDI ◽  
Salvatore Brullo ◽  
DARIO CUSIMANO ◽  
GIANPIETRO GIUSSO DEL GALDO
Keyword(s):  
New Species ◽  
Southern Italy ◽  
Conservation Status ◽  
Morphological Features ◽  
Morphological Comparison ◽  
A New Species

Limonium poimenum is here proposed as a new species for Science. It is a very peculiar and extremely localized species, growing on a calcareous mountain of NW Sicily (southern Italy), where it grows on rupestrian places together with many other rare chasmophytic endemics. Iconography, morphological features, ecology and conservation status are provided, as well as a morphological comparison with L. todaroanum.

scholarly journals A new species of troodontid theropod (Dinosauria: Maniraptora) from the Horseshoe Canyon Formation (Maastrichtian) of Alberta, Canada

2018 ◽  
Author(s):  
David Evans ◽  
Thomas Cullen ◽  
Derek Larson ◽  
Adam Rego
Keyword(s):  
New Species ◽  
North America ◽  
Alpha Diversity ◽  
Width Ratio ◽  
New Taxon ◽  
Lateral Region ◽  
Morphometric Analyses ◽  
Dinosaur Park Formation ◽  
Horseshoe Canyon Formation ◽  
A New Species

Troodontid material from the Maastrichtian of North America is extremely rare, beyond isolated teeth from microvertebrate sites. Here we describe troodontid frontals from the early Maastrichtian Horseshoe Canyon Formation (Horsethief Member). The most complete specimen, TMP 1993.105.0001, is notably foreshortened and robust when compared with numerous specimens referred to Troodon from the Dinosaur Park Formation, and exhibits several characteristics that distinguish it from other Late Cretaceous troodontids. Morphometric analyses reinforce shape differences between TMP 1993.105.0001 and other North American troodontids, and show that proportional differences are independent of size. We therefore erect a new taxon, Albertavenator curriei gen. et sp. nov., which is diagnosed by the following autapomorphies: (1) primary supraciliary foramen is truncated anteriorly by the lacrimal contact; (2) superficial (ectocranial) surface of the frontal proportionally shorter than all known troodontids, with a length to width ratio under 1.3; and (3) frontoparietal contact in which an enlarged lappet of the frontal extends medially to extensively overlap the lateral region of the anteromedial process of the parietal. Interestingly, tooth and jaw morphology from the single relatively complete dentary recovered from the Horseshoe Canyon cannot be distinguished from dentaries and teeth from the Dinosaur Park Formation. If the dentary and teeth from the Horsethief Member of the Horseshoe Canyon Formation prove to belong to A. curriei, extensive overlap in tooth morphology between the Dinosaur Park and Horseshoe Canyon formations reinforces the notion that tooth morphotypes do not exhibit strong correspondence to species alpha diversity, and may encompass multiple closely related taxa.

scholarly journals Chiastocaulon raetzelii (Marchantiophyta, Plagiochilaceae), a new species from New Caledonia

Phytotaxa ◽  
2021 ◽  
Vol 521 (4) ◽  
pp. 237-243
Author(s):  
FRANK MÜLLER ◽  
LOUIS THOUVENOT
Keyword(s):  
New Species ◽  
New Caledonia ◽  
Leaf Length ◽  
Leafy Shoots ◽  
A New Species

The new liverwort species Chiastocaulon raetzelii is described from New Caledonia. Chiastocaulon raetzelii is characterized by very fragile, caducous leaves, stems therefore often becoming completely denuded of leaves; only bract leaves of the androecia are permanent and often the only ones remaining on the stem. Plants are minute with leafy shoots to 1 mm wide. Leaves on leafy shoots are arranged in opposing pairs, they are obovate-truncate to spathulate, with 3–7 teeth per leaf, teeth are filiform, consisting of long rectangular cells, and occupy about 1/3 to 1/4 of the entire leaf length. The species is compared to C. oppositum and C. geminifolium, which are the most similar morphologically.

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